Snooper Syrius or Garmin Nuvi 660?

[jez-m]

Hi - looking to get my first sat nav and have narrowed it down to the Snooper Syrius and the Garmin 660. Any advice out there as to which is better? Priority for me is speed camera detection. Not remotely interested in ability to play MP3s etc, but Bluetooth would be useful.

TIA for any advice.